- the Sunday after Whit Sunday
WordReference Random House Unabridged Dictionary of American English © 2026
Trin′ity Sun′day,
- Religionthe Sunday after Pentecost, observed as a festival in honor of the Trinity.
- late Middle English 1400–50
Collins Concise English Dictionary © HarperCollins Publishers::
Trinity Sunday n
'Trinity Sunday' also found in these entries (note: many are not synonyms or translations):